Commissioned by St. Peter's Church, NYC for their 2021 Good Friday Liturgy

Bálint Karosi conducting

Addy Sterrett - Jesus
Elliott Encarnación - Evangelist
Malcolm Merriweather - Peter / Simon of Cyrene
Harrison Hintzsche - Pilate
Samantha Caps - Alto Chorus

David Southorn - Violin
Saerom Yoo - Violin
Lauren Siess - Viola
Giancarlo Latta - Viola
Michael Haas - Cello
Ana Kim - Cello
Nathaniel Chase - Double Bass
Melanie Genin - Harp
Charles Kiger - Percussion
William Cooper - Organ

St. Luke Passion - Part One

St. Luke Passion - Part Two

An excerpt from my Passacaglia, as performed at the 2013 Wellesley Composers Conference.

Passacaglia for Chamber Orchestra (Excerpt)

Commissioned by the Bowlin Family in honor of Barbara Klingsick

David Bowlin, Violin
Tony Cho, Piano

Photo Credit: David Cooper

St. Clement

Passacaglia for Chamber Orchestra (complete)

Written for and performed by the cello studio of Richard Aaron at the Aspen Music Festival in 2015.

Roaring Forks (for 12 cellos)

The Berlin Philharmonic's Scharoun Ensemble

Oktett (1st Movement and Beginning of 2nd Movement)

Exeter College, Oxford University
Michael Koenig, organist

Levavi oculos meos in montes

The Alma Symphony, Jonathan Spatola-Knoll, conducting (2/2/2020)

Excerpt from "Ishmael" (a tone poem on themes from the opera Hagar and Ishmael)

Notturno for String Quartet (2025)

O Lord, Support Us

Text: John Henry Newman
Composer: William David Cooper

Performed at Wellesley Hills Congregational Church's "Bach Vespers" on June 1, 2025


O Lord, Support Us

For full orchestra
From a reading session at the 2015 Aspen Music Festival
The American Academy of Conducting at Aspen Orchestra
Sey Ahn, Conducting

Clouds Of Witnesses (2015)

Requiem (2019)

I. Requiem aeternam
II. On Immortality (Thomas Hardy)
III. Out of the Deep (Psalm 130)
IV. To One in Paradise (Edgar Allan Poe)
V. I Heard a Voice (Revelation 14)

Commissioned by St. Peter's Church, NYC

Balint Karosi, conducting
Addy Sterrett, soprano
Kannan Vasudevan, tenor

The St. Peter's Choir and Orchestra

IV. To One In Paradise

I. Requiem Aeternam

From premiere performance 3/5/2015 by Splinter Reeds at UC Davis's Mondavi Center

Ostinati For Reed Quintet

gamin - piri
Omar Chen Guey - violin
Rafael Popper-Keizer - violoncello

William David Cooper

Pinned to spotlight

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